MCR Safety's STSL t-shirts are ideal for those who need a light weight and comfortable high visibility option. Made of solid polyester jersey fabric, the STSL shirt is comfortable, cool, and perfect for all day wear. Other features include hi-vis fluorescent lime material, left chest pocket, and is available in sizes M-X4. This t-shirt does not have reflective material so is not ANSI rated. If you are searching for best hi vis clothing options, look no further than MCR Safety!